KNSB

KNSB may refer to:


 * KNSB (FM), a radio station (91.1 FM) in Bettendorf, Iowa
 * Royal Speed Skating Federation (Koninklijke Nederlandsche Schaatsenrijders Bond)
 * The Royal Dutch Chess Federation (Dutch: Koninklijke Nederlandse Schaakbond - KNSB)
 * The Confederation of Independent Trade Unions of Bulgaria, also known as KNSB